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The Warm up
Worlds week: the best young athletes on the planet take the stage
Saturday is a big day. The Artistic Gymnastics World Championships open in Rotterdam and run October 17 to 25, with men's and women's team finals on October 20 and 21. Four of the five women on the U.S. team, including Olympian Hezly Rivera, are making their worlds debut. The same day, the FIFA U-17 Women's World Cup kicks off in Morocco. The U.S. opens against Samoa on October 19, with a roster that includes goalkeeper Avellina Saunders from my hometown of Phoenix.
The world stage is busy beyond the big leagues, too. At the men's Futsal Africa Cup of Nations in Rabat, host Morocco is chasing a record fourth straight title and has already clinched a semifinal spot with wins of 4-0 over Algeria and 7-0 over Zambia. The world's top badminton players are in Odense for the Denmark Open, with finals on October 18. And at Sunday's Chicago Marathon, Amos Kipruto won the men's race in 2:01:09, Hawi Feysa defended her women's title in 2:13:33, and Emma Grace Hurley set an American debut record of 2:20:47.
Also on the calendar this week:
WNBA Finals: The Atlanta Dream and Golden State Valkyries both swept their semifinals and open the Finals on October 17.
MLB: The Brewers beat the Dodgers 6-2 in Game 3 Wednesday night to take a 3-0 NLCS lead and are one win from their first World Series in 44 years. Game 4 is Thursday in Los Angeles. The ALCS is tied 1-1 after the Guardians won Game 1 7-3 and the Rays answered 3-1 in Game 2. Game 3 is Thursday in Cleveland.
College volleyball: Nebraska is a unanimous No. 1 and the only unbeaten team left in the AVCA top 25.
College field hockey: Maryland (12-0) moved to the top of the national coaches poll.
NFL: The Seahawks visit the Broncos on Thursday Night Football, with both teams at 3-2.
Every athlete on those stages took a long road to get there, and for most of the world's best, that road started with more than one sport.
The Lead Off
Most world-class athletes did not specialize early
THE SCIENCE: The biggest study on this question pooled 51 research reports covering 6,096 athletes, including 772 of the world's top performers. Adult world-class athletes did more multisport practice as kids, started their main sport later, practiced it less, and progressed more slowly at first than athletes who topped out at the national level (Perspectives on Psychological Science). There is a twist that explains why parents feel so much pressure. Among youth athletes, the kids who were winning early usually did start sooner and practice their main sport more. What wins at 12 is often not what wins at 22.
Early specialization also shows up in injury clinics. In a study of 1,190 athletes ages 7 to 18, kids in specialized training were more likely to be injured, and more likely to have a serious overuse injury, even after accounting for age and total hours. Kids who played more hours per week than their age in years had about twice the odds of a serious overuse injury. So did kids whose organized sport hours were more than double their free-play hours (American Journal of Sports Medicine).
The pattern holds at the pro level. Among 318 recent first-round NBA draft picks, the ones who played another sport in high school played more games in their first three seasons and missed a smaller share of games to injury, 13.5% compared with 16.9% (study of NBA draft picks).
This matters for girls in particular. In data reported by the Aspen Institute's Project Play, 90% of girls and 79% of boys went past that two-to-one ratio of organized sport to free play, and girls played their main sport for more months of the year (State of Play 2025).
The National Athletic Trainers' Association turns all of this into simple guardrails. Delay specializing as long as possible, play one organized sport per season, keep any single sport under eight months a year, keep weekly hours at or below your athlete's age, and take at least two days off each week (NATA).
What This Means for Your Athlete: Through about age 12, variety is the plan, not a detour. Researchers call ages 6 to 12 the "sampling years," and early sampling has been linked to longer playing careers, a broader motor skill base, and more motivation (Aspen Institute). Your athlete can still have a favorite sport. Just make room for a different one, plus free play and real rest days.
🔄 TRANSLATE TO YOUR SPORT:
Soccer and futsal: Futsal is a natural winter pairing, with more touches in a smaller space.
Gymnastics and dance: These sports often start young. The hours-versus-age rule and two rest days a week matter even more here.
Volleyball and badminton: Both use overhead swings and quick footwork, so a season of one can be a fun change of pace for the other.
Track and cross country: Running supports almost every sport, which makes a track season an easy second sport for field and court athletes.
Field hockey, lacrosse, and hockey: Stick skills carry over, but a non-stick sport like swimming gives growing bodies a different kind of work.
The Fuel Station
Family Sampler Board: Chicken, Hummus, and Rice
A sampler board is the dinner version of this week's theme. Everyone builds their own plate, and picky eaters get to try new foods without pressure.
THE PLAYERS (serves 4)
1½ pounds boneless chicken thighs or breasts
1 tablespoon olive oil
1 teaspoon each cumin, paprika, garlic powder, and salt
Juice of 1 lemon
1 cup dry rice (about 3 cups cooked)
4 whole-wheat pitas, cut into triangles
1 cup hummus
1 cup plain Greek yogurt, mixed with ½ grated cucumber and a pinch of salt
1 cucumber, sliced, and 1 pint cherry tomatoes
2 oranges, cut into wedges, and a bunch of grapes
Optional: roasted chickpeas, feta, olives
THE BUILD
Heat the oven to 425°F. Toss the chicken with the oil, spices, and lemon juice, and roast for 18 to 22 minutes, until it reaches 165°F inside.
Cook the rice while the chicken roasts.
Warm the pita for 3 minutes in the oven.
Slice the chicken and set everything out on a board or a few plates so everyone can build their own.
THE GOAL: Serve it about 3 hours before practice or a game. Pediatric sports nutrition guidance suggests eating a full meal at least 3 hours before an event, with carbohydrate, protein, and some fat, and limiting fiber (Paediatrics & Child Health). It also works as a recovery dinner.
WHY IT WORKS
Carbohydrate leads the plate. The rice, pita, and fruit fill up the muscle fuel athletes burn in practice, since eating carbohydrate before exercise raises muscle glycogen (review of adolescent athlete nutrition).
Protein in a useful amount. Chicken and yogurt help a teen land in the suggested 20 to 40 g of protein per meal (review of adolescent athlete nutrition).
Iron matters, especially for girls. One review estimates iron deficiency affects up to 52% of female adolescent athletes (review of adolescent athlete nutrition). Teens ages 14 to 18 need about 11 mg a day for boys and 15 mg for girls (Paediatrics & Child Health). Chicken thighs, hummus, and chickpeas all help.
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The Lab
Three drills that build an all-sport athlete
THE PLAY: Before kids are soccer players or gymnasts, they are movers. Children who are better at basic skills like throwing, catching, jumping, and landing tend to be more active, and research has found strong evidence for that link (Sports Medicine). These three drills build skills that carry into any sport. They are new this week.
Drill 1: Wall Ball, Both Hands
Setup. A tennis ball and a wall, fence, or garage door.
The drill. Throw the ball against the wall and catch it with the right hand 10 times, then the left hand 10 times, then alternate hands for 10 more.
Progression. Clap once before each catch, then try it standing on one foot.
Why it works. Throwing and catching are core movement skills, and better movement skills are linked to more physical activity (Sports Medicine).
Drill 2: Land Like a Gymnast
Setup. A low step or curb, about 6 to 12 inches high.
The drill. Step off and land on both feet with knees bent and pointed over the toes, arms forward, as quietly as possible. Hold the landing for 2 seconds. Do 8 reps.
Progression. Add a small hop forward, then sideways, then a one-foot landing.
Why it works. FIFA 11+ Kids, a warm-up that trains balance, landing, and falling technique, cut overall injuries in children's soccer by 48% and severe injuries by 74% in a large trial (review of FIFA 11+ Kids studies).
Drill 3: Make Up the Rules
Setup. Any ball, two cones or shoes, and a sibling or friend.
The drill. Your athlete invents a game and its rules, then plays it for 15 minutes. You do not coach. You can play, cheer, or watch.
Progression. Change one rule every round, like "weak foot only" or "every pass has to bounce."
Why it works. Kids whose organized hours were more than double their free-play hours had higher odds of serious overuse injury (American Journal of Sports Medicine). Play that kids run themselves is meant to be fun first, with flexible rules and little equipment (Aspen Institute).
🔄 TRANSLATE TO YOUR SPORT: Volleyball and basketball players get the most from the landing drill. Badminton and tennis players can do wall ball with a racket. Field hockey players can add a stick dribble to the made-up game.
Parent Playbook
How to say "not yet" to year-round pressure
THE STRATEGY: If this is your first season, you will probably hear about a year-round team sooner than you expect. It helps to know where the research lands. One leading youth sport researcher concludes that specialized programs for ages 6 to 12 are not necessary in most sports, even for developing elite athletes (Côté, J., & Hancock, D. J. (2016)). Athletic trainers recommend one organized team at a time and less than eight months a year in any single sport (NATA). Saying "not yet" is not saying no to your athlete's dreams. It protects them.
THE PLAY: Build a three-season map together.
Draw fall, winter, and spring on one page and put it on the fridge.
Pick one organized sport for each season, and make at least one of them very different from the main sport.
Mark two rest days a week and a short break after each season.
Before you sign up for any club, first-time sports parents can ask these five questions:
How many months a year does the team train and compete?
How many practices and games are there each week?
Can players do another sport in the off-season, or during the season?
What happens if my athlete misses something for another sport?
What is the full cost, including travel and uniforms?
THE CONVERSATION STARTER: "If you could try any sport this winter just for fun, what would it be?"
🔄 TRANSLATE TO YOUR SPORT: In early-start sports like gymnastics, dance, and figure skating, sampling can mean adding a season of swimming, running, or a team sport alongside lighter training.
🏆 Play of the Week
Watch Worlds Week like a coach
THE PLAY: Watch 15 minutes of world-class competition together. Gymnastics qualification starts October 17, the U.S. plays Samoa at the U-17 Women's World Cup on October 19, and the Denmark Open badminton finals are on October 18. Ask two questions:
Which skills here would help in a different sport, like balance, landing, or footwork?
Where do you see an athlete's whole body working, not just their hands or feet?
🔄 TRANSLATE TO YOUR SPORT: If your family is watching the WNBA Finals, the NLCS, or Thursday Night Football instead, look for the same things: how players land, change direction, and keep their balance.
THE GOAL: Help your athlete see that great athletes are great movers first. The skills they build in one sport will follow them into the next.
THE FINAL WHISTLE
Variety now, focus later
The athletes in Rotterdam, Morocco, and Odense this week are the end of a long story. For most of the world's best, that story started with a lot of different sports and a lot of play.
You do not have to choose your athlete's sport for them this year. Your job is to keep the doors open, protect their rest, and help them love moving. Focus can come later, and it usually works better when it does.
Let them try it all. The best athletes usually did.
See you on the sidelines,
The Seasoned Sidekick Team
Pass the Assist
Know a family being asked to commit to a year-round team before their kid turns 12? Forward this issue before the next tryout.
Keep Reading
October 8, 2026: Division Series: Bouncing Back
October 1, 2026: Opening Night: Ramp Up, Don't Sprint
Medical Disclaimer: The content in The Seasoned Sidekick is for informational and educational purposes only. It is not intended to replace the advice of a licensed physician, registered dietitian, or certified athletic trainer. Always consult a qualified healthcare provider before making changes to your athlete's nutrition, training, or recovery plan. Individual needs vary. The information presented is based on available research and general guidelines for youth athletes.